Retouching machine



March 9 1926.

RETOUCHING MACHINE Filed May 14. 1924 R. B. sHoEMAKr-R XNVENTOR Y ytric -RAYMoNnn sito ,y MAKERQLa eitiv'enfof the United; "Statesfof y '--s v1kmefrica,1'residingfat city, county, kand State v175fofNe'vv YQkgrhave inventeda new". ad,11fse.

Y MachineQof ivvhchthe'jo-l'- "have threaded engagement,With4 the" shaft. v kj'lfhe"'shaft 'alSQhas a spherical!enlargement 14:; which constitutes alball Abearinggor.- uni-1` s s l l A versal'joint-fivhichQis 'seated between the ends ally .driven for! the Yuse of photograpers, .111, tuchersy artists;.``Iphctoengravers,l archi-" ctsy'desifgners yand engineers in y retouching, v Sing and' @toningphwgraiphiq' plates;

Y "machines or, inmentsWhich areymechamcally torsV elecsf,prints' 'gcturesfy :and various materials y Voval siovarioussizes `forliied inV continuous interlmlied succession fm., concomnonlyffemployed.

In^`fcarrying thisifinvention into effect I'f .employm a. shaftand an?, enclosing 'tubular Y', member#` VThe.shaftbasauniversal joint-,n- -f'one-endf V,thetubula`ri member. The-.other 'i :fendiofthe'shaft has a simplelform of coup- 'f ling f Within the tubular member. x The' tui bular member/'vis formed yin "sections, parts f f vvhich are movable vfor the purpose of 40 yfFgure 1 is a v embodymgimprcvements of my mventlon.

' l .'Figurev 2 is anjenlarged longitudinalsecthe plane Vof the; line of Figure 3;

501 @Figure 5- fisfanxexploded-view showing various'parts'oftheinstrument.

: if The tubular memberfconslsts 'o i Gafphe bear-i.ng'acheclnutr or sleeve Sand v` n :that I, RAYivioND Snom:

end of the. shaft member4v 15.

he Y 1 Shaft tand.. controlling the side view ofan instrument Y vcome' larger 'as the sleeve 9 is .backedy o.

further until the maximuml size possible kfor f. 'f lthat design of instrument is attained. Re,- Vverse adjustment of the-sleeve 9ybrings the fthe body A'Iheshat l0k has jaws 11 yclutching'the penc1l 'r other marking member. {The jaw f clamping" member 12l andl the check-,nut 13 shaft member v15 yis adapted to he driven from any suitable` sourcefjoffpovverlandhas areces'sior socketl adapted to jreceiveQthe`-'I `end ofthe shaft-10.1 These` shaft parts are loosely connected together by VAal screvv` 17.

The cone 'clutch is mounted4 on the afscrewjf22v extending into an annular Jslot 1n v` tlie`E clutch member :20. "Thev screw"'23.y y passes'through the adjusting member 9- andk 18.y v :The 'screWffQV passes'throu'ghthe r.sleeve l tubular member. A spring Q7 'astened to .the end,` off they shaft 10. bearsv against one -side wall ofthe' recess orffsocket 16 in 'the When the'partsare the position shovvn -785 mFgigure 2 lthe clutch memberj20 `fis Seatedl in the upper end yof the tubular handle:V

'member' 6 so that the shaft 10 is centrally located inthe 4tubular member.

shaft is driven'this will produce a d ot if When the the member is held stationary. Whenitfis desired'to makefsmallcircles the adjusting sleevef.9 is retracted. kThis disengages the z clutch member 20 from the upper'- end of the tubular body 6 Vand-the spring 27 automat- 95 ically tilts the shaft 10V sof'that thecon-` tinued rotation of the shaftv Will-c'ausethe pencil'or other markingfpoint to Wabble or draw small circles.KV These circles 'will betwo'parts of the shaft into alinement `and rel; i duces the size of circles automatically-farm 195 duced vuntila pointjis reached. y 

